A flask P contains 0.5 moles of oxygen gas. Another flask Q contains 0.4 moles of ozone gas. Which flask contains greater number of oxygen atoms?

Flask P

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Flask Q

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Both contain same number of atoms

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Solution

The correct option is B Flask Q
No of moles of oxygen atoms in $P = 0.5 \times 2 = 1 m o l e$
while in $Q = 0.4 \times 3 = 1.2 m o l e$
So Q has higher no of the mole of oxygen atoms.

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